Water-closet



(No Model.)

J. H. HAMILTON.

WATER CLOSET.

No. 534,689. Patented Feb. 26, 1895. v

invention.

tame STATES JOHN H. HAMILTON, OF DETROIT, MICHIGAN.

WATER-CLOSET.

SPECIFICATION forming part of Letters Patent No. 534,689, dated February 26, 1895.

7 Application filed April 4, 1893. Serial No. 468,971. (No model.)

To all whom it may concern.-

Be it known that 1, J OHN H. HAMILTON, a citizen of the United States, residing at Detroit, in the county of \Vayne and State of Michigan, have invented certain new and useful Improvements in Water-Closets, of which the following is a specification, reference be ing had therein to the accompanying drawings.

This invention consists in the peculiar'construction of the bowl and the discharge passage therefrom, whereby the formation of the vacuum is facilitated, with a minimum of water, and whereby the Water chamber beneath the bowl is thoroughly flushed; further in the peculiar construction and arrangement of the water passages whereby the after fill is carried to the bowl, all as more fully hereinafter described.

Figure l is a vertical central longitudinal section through a water closet embodying my Fig. 2 is a side elevation thereof.

A is the water supply pipe.

, B is the bowl.

0 is the passage connecting the pipe A and the bowl.

D is a downwardly extending flange in the bowl, forming a trap in the bowl.

E is the discharge passage in the rear of the bowl. F is a weir or dam in said discharge passage forming a water receptacle G, this weir beingof a height to maintain a normally open air passage above the water level.

H is a trapped passage from the passage 0 having a jet I discharging into top of passage E.

The operation ofthese parts is as follows: The water entering through jet I, drives the air out of the passage E, and raising the level of the water in the receptacle G until it touches the lower edge of the bowl sealing the outlet of the passage E. The receptacle G, however, would not be properly flushed, as the seal is not sufficient to maintain the siphonic action of the Water, and much of the solid matter would remain in that receptacle after each flooding, owing partly to the depthof the receptacle G. To overcome this objection I construct a wall J which forms a continuation of the rear of the bowl and extends down at an incline to a point below the plane of the bottom of the bowl. By this the equivalent.

means the passage E is continued down into the receptacle G so that the movement of the water and foreign matter will be forcibly continued through the receptacle G. In the upperedge of the wall J is formed a small aperture K through which the air is forced by the jet, before the trap is formed below the bowl. It will thus be seen that as the water enters through the jet, the air is forced out of the passage E through the aperture K and beneath the bowl, and quickly thereafter the passage below the bowl is sealed by the incoming water and the siphonic action started which will carry the contents of the bowl below the wall J with the requisite force to discharge all foreign matter from thereceptacle. As soon as the water ceases to flow into the receptacle the trap is broken and the air rushes in through the aperture K preventing further siphoning.

In such closets the after fill from the tank in passing from the pipe H to the bowl, will mostly flow out through the passage H. This is objectionable, as sufficient Water is not supplied to properly fillthe bowl. I arrange the port- H with its lower edge above the bottom of the passage 0, leaving a channel in said passage below the port. This permits the after fill to flow uninterrupted to the bowl.

I have shown the wall J in the nature'of a partition or diaphragm. It is evident that it may be made of any desired shape or construction, and while the aperture K is shown as a port through this wall, it is evident that any restricted aperture effecting communication from the vacuum forming chamber of the discharge pipe from the bowl with the soil pipe at or near the water level in the false trap or auxiliary water receptacle would be It is also evident that while the most desirable place to locate the water jet is at the top of the siphon forming chamher, this jet may be placed at other points to accomplish the same result, that is to drive out the air in advance of theincoming Water.

What I claim as my invention is- I. In a water closet of the kind described, the combination of the bowl, an auxiliary waterreceptacle in the exit pipe from the bowl having a weir to form a normally open passage above the water level, a partition extending into said receptacle to form a trap roo having an opening above the passage over the water level, and a water jet discharging into the exit pipe of the bowl, substantially as and for the purpose described.

2. In a water closet, the combination of the bowl having a siphon trap, a discharge passage leading from said trap beneath the bowl, and connecting with the discharge pipe, a water chamber formed beneath the bowl, having its overflow located slightly below the bottom of the how], a wall depending from the bowl into the chamber, an aperture in the wall above the Water level, a water supply pipe,a connection from said pipe to the bowl, and to the top of the discharge passage beside the bowl and a trap in said last named passage, substantially as described.

3. In a Water closet of the kind described, the combination of the bowl, a discharge pipe from the bowl connecting to the soil pipe, an auxiliary Water receptacle in the discharge pipe, a restricted normally open passage connectiug the vacuum forming chamber in the ter receptacle in the exit pipe from the bowl having a weir to form a normally open passage above the trap having an opening above the passage over the water level, and .a water jet discharging into the exit pipe of the bowl. In testimony whereof I affix my signature in presence of two witnesses.

JOHN H. HAMILTON. 'VVitnesses:

N. L. LINDOP, OTTO F. BARTHEL. 

